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	Inventario per la Xerostomia (XI)	Impatto Orale sulle Prestazioni Quotidiane (OIDP)
Campo	Odontoiatria	Odontoiatria
Famiglia	Process / pipeline	Process / pipeline
Anno di origine	1999	1997
Ideatore	Wayne M. Thomson et al.	Somchai Adulyanon and Aubrey Sheiham
Tipo	Self-report questionnaire	Self-report questionnaire
Fonte seminale	Thomson, W. M., Chalmers, J. M., Spencer, A. J., & Williams, S. M. (1999). The xerostomia inventory: A multi-item approach to measuring dry mouth. Community Dentistry and Oral Epidemiology, 27(6), 406-412.	Adulyanon, S., & Sheiham, A. (1997). Oral impacts on daily performances. In G. D. Slade (Ed.), Measuring Oral Health and Quality of Life (pp. 151-160). Chapel Hill: University of North Carolina.
Alias	Xerostomia Inventory (XI), XI Scale	OIDP, Oral Impacts on Daily Performances (OIDP)
Correlati	3	3
Sintesi	The Xerostomia Inventory (XI) is an 11-item self-report questionnaire designed to measure subjective perception of dry mouth (xerostomia). Developed by Thomson and colleagues in 1999, it has become the standard validated instrument for assessing dry mouth severity in clinical practice and research. The XI captures both the frequency and severity of oral dryness symptoms and their impact on daily functioning, distinguishing symptomatic xerostomia from objective salivary gland dysfunction.	The Oral Impacts on Daily Performances (OIDP) is an 8-item interview-administered instrument measuring the functional and social impact of oral conditions on everyday activities. Developed by Adulyanon and Sheiham in 1997, it captures how oral problems (pain, difficulty eating, appearance concerns) disrupt routine daily performances such as eating, speaking, cleaning teeth, sleeping, smiling, and work concentration. The OIDP is particularly valuable in developing countries and resource-limited settings where functional impairment is the primary concern.